AI Article Synopsis
- Hybrid carbon nanotube (CNT) sheets were created by combining CNTs with silver nanowires (AgNWs) and MXene to enhance their electromagnetic-interference (EMI) shielding properties.
- The hybrid sheets were produced using ultrasonic mixing and vacuum filtration, with variations in the weight ratios of the added materials.
- The final hybrid sheets showed significant improvements: EMI-shielding effectiveness increased by over 200%, and electrical conductivity improved by more than 1500%, although this also led to an increase in weight and thickness of the samples.
Article Abstract
Hybrid carbon nanotube (CNT) sheets were fabricated by mixing CNTs with silver nanowires (AgNWs) and MXene to study their electromagnetic-interference (EMI)-shielding properties. CNT/AgNW and CNT/MXene hybrid sheets were produced by ultrasonic homogenization and vacuum filtration, resulting in free-standing CNT sheets. Three different weight ratios of AgNW and MXene were added to the CNT dispersions to produce hybrid CNT sheets. Microstructure characterization was performed using scanning electron microscopy, and the Wiedemann-Franz law was used to characterize transport properties. The resulting hybrid sheets exhibited improved electrical conductivity, thermal conductivity, and EMI-shielding effectiveness compared to pristine CNT sheets. X-band EMI-shielding effectiveness improved by over 200%, while electrical conductivity improved by more than 1500% in the hybrid sheets due to a higher charge-carrier density and synergistic effects between nanomaterials. The addition of AgNW to CNT sheets resulted in a large improvement in electrical conductivity and EMI shielding; however, this may also result in increased weight and sample thickness. Similarly, the addition of MXene to CNT sheets may result in an increase in weight due to the presence of the denser MXene flakes.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11478732 | PMC |
| http://dx.doi.org/10.3390/nano14191587 | DOI Listing |
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